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प्रश्न
Explain the progress of ecological succession in newly formed volcanic island.
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उत्तर
- Primary succession starts at places where no living organisms were present before like a newly formed volcanic island.
- Before a biotic community of diverse organisms can be established, there must be soil. Depending mostly on climate, it takes natural processes, several hundred to several thousand years to produce fertile soil on bare rock.
- The species which invade a bare area and initiate the succession are called pioneer species. Crustose lichen grows on the rocks which secretes acid to dissolve rock. This helps in weathering of rocks and formation of soil.
- These conditions become favourable for the next community i.e. bryophytes and mosses take hold of the small amount of soil.
संबंधित प्रश्न
Explain how does a primary succession start on a bare rock and reach a climax community?
All types of ecological succession whether on land or in water always reaches ______.
Where does secondary succession occur?
____________ succession begins where no living organisms were present before.
Which are the pioneer species in xerarch and hydrarch succession respectively?
Transformation of a region from a pool of water to swamp then to marsh and then to mesic condition is an example of ____________.
During the process of ecological succession the changes that take place in communities are ______.
The sequence of communities of primary succession in water is ______.
Under what conditions would a particular stage in the process of succession revert back to an earlier stage?
During ecological succession ______.
